Photonic Crystal Fiber Tip Sensor for Precision Temperature Sensing

被引:4
|
作者
Jung, Il Woong [1 ]
Park, Bryan [1 ]
Provine, J. [2 ]
Howe, Roger T. [2 ]
Solgaard, Olav [1 ]
机构
[1] Stanford Univ, Dept Elect Engn, EL Ginzton Lab, Stanford, CA 94305 USA
[2] Stanford Univ, Dept Elect Engn, Inst Circuit Lab, Stanford, CA 94305 USA
关键词
Photonic crystal; fiber sensor; temperature sensing; GOPHER;
D O I
10.1109/LEOS.2009.5343346
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We demonstrate that monolithic 2-dimensional photonic crystals (PCs) confined to the facet, or tip, of single-mode optical fibers can be designed as highly sensitive temperature sensors. Monolithic 2-D photonic-crystals are fabricated on silicon wafers and subsequently released and micro-assembled onto the tip of optical fibers. The PC's reflection spectrum is modulated by the temperature of the sensor and its environment and shows sensitivity comparable to Fiber Bragg Gratings (FBGs). In contrast to FBGs, the compact sensing element is localized at the tip of the fiber and the active sensor element is a disk of 10 mu m diameter and 480 nm thickness. The sensor system is made of robust, high-temperature dielectric materials and therefore has the potential to be used for many applications including measurements in harsh environments.
引用
收藏
页码:761 / +
页数:2
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